Hydrogen production by steam reforming for glycerol as a model oxygenate from bio-oil
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Glycerol is a model whose ingredients are dominant in bio-oil, that is the reason why this thesis chooses glycerol as the model to pyrolyze biomass into oil. The thesis adopts coprecipitation method to produce a series of Ni-based catalysts, researches the rules and principles of restructuring glycerol into hydrogen in gasification reactor and explores the reaction conditions and reaction principles to restructure glycerol and to produce hydrogen. The result of this experiment shows that Ni-dolomite catalyst, in addition with oxide MgO or oxide CoO, greatly improves the activities of catalyst and effectively reduces the rate of carbon deposition. In order to study the restructuring reaction-temperature, ratio of water-carbon as well as the effect of feeding flow rate on the restructuring glycerol into hydrogen by steam catalysis, the thesis chooses Ni/MgO-CoO-dolomite as catalyst and the productivity of H 2, CO, CH4, CO2 in reaction gas as research index. The ideal reaction condition is acquired as follow: reaction temperature is 650-700C; S/C is 8-10 and feeding flow rate is 2.5-4ml/min. © 2011 IEEE.
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